NameStory

Sebastian: Meaning, Origin & Numerology

GreekBoy♂ Number 9
Check Sebastian with your due date

Free compatibility check

What does Sebastian mean?

Sebastian is a Greek boy's name meaning “venerable, revered”.

This Greek name has been cherished by parents seeking ancient Greek and Roman heritage.

Get Sebastian's cosmic report

A 14-page PDF built from Sebastian and your child's birth date. $4.99 one-time, no account needed.

Origin & History

Sebastian draws from the golden age of ancient Greek and Roman civilizations, renowned for philosophy, mythology, and the foundations of Western culture. Classical names often embody virtues, natural elements, or references to epic mythology, offering both timeless beauty and profound meaning.

Numerology of Sebastian

Pythagorean Number

9

The Humanitarian

Key Traits

Compassionate, generous, idealistic

Ruling Planet

♂Mars

Planetary Traits

Energy, courage, passion

The letters of Sebastian

9 letters: 4 vowels, 5 consonants.

  1. S1
  2. E5
  3. B2
  4. A1
  5. S1
  6. T2
  7. I9
  8. A1
  9. N5

Vowels (shaded): E, A, I, A.

Expression

9

The Humanitarian

all letters

1 + 5 + 2 + 1 + 1 + 2 + 9 + 1 + 5 = 27 → 9

Soul Urge

7

Knowledge

vowels

5 + 1 + 9 + 1 = 16 → 7

Personality

11

Visionary

consonants

1 + 2 + 1 + 2 + 5 = 11

Popularity of Sebastian

Current Rank

#16

Peak Year

2016

Total Births

209,385

Sebastian is a beautiful Greek name choice.

Sebastian in the 2025 Social Security ranking

#16

on the 2025 boys' list.

Source: US Social Security baby name data, 2025.

  1. #12Levi
  2. #13Elias
  3. #14Luca
  4. #16Sebastian
  5. #17Hudson
  6. #18Samuel
  7. #19Leo
  8. #20Ezra

Is Sebastian compatible with your due date?

Enter your baby's due date to discover the cosmic compatibility between their life path and the name Sebastian.

Check Compatibility
Get Sebastian's cosmic report

A 14-page PDF built from Sebastian and your child's birth date. $4.99 one-time, no account needed.

Names that share Sebastian's numbers

Sebastian: Expression 9, Soul Urge 7, Personality 11.

More Classical Names

Popular names sharing Sebastian's classical heritage.

Explore More Names

Frequently Asked Questions

What does Sebastian mean?
Sebastian is a Greek name meaning "venerable, revered." It belongs to the Classical family of names, carrying ancient Greek and Roman heritage.
What is the numerology number for Sebastian?
In Pythagorean numerology, Sebastian has the number 9, known as The Humanitarian. Key traits include: Compassionate, generous, idealistic. This number is ruled by Mars, the planet of energy, courage, passion.
Is Sebastian a popular baby name?
Sebastian is quite popular, ranking #16 among baby names in the US.
What origin is the name Sebastian?
Sebastian is a Greek name from the Classical tradition. Sebastian draws from the golden age of ancient Greek and Roman civilizations, renowned for philosophy, mythology, and the foundations of Western culture. Classical names often embody virtues, natural elements, or references to epic mythology, offering both timeless beauty and profound meaning.
Is Sebastian compatible with my baby's birth date?
Name compatibility depends on your baby's Life Path number, which is calculated from their birth date. Sebastian (Number 9) pairs well with Life Paths 3, 6, 9. You can check the exact compatibility score for free at namestory.app/try by entering your due date and the name Sebastian.

Discover more names that match your baby's cosmic profile

Browse All Names